Emulsions are so much employed on the Continent that the methods there pursued are well worth knowing. We here reproduce some hints from the late Dr. Hermann Hager, with editorial comments. This chapter has been found useful by those who have German prescriptions to dispense.

Emulsions are, according to Dr. Hager, milky-looking, thick fluids, of mucilaginous or gummy substances, or combinations of water with oily, fatty, or resinous bodies. They are classified as seed, oil, balsam, gum-resin, resin, wax, or spermaceti emulsions.